diff --git a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/dao/ActivityInfoDao.java b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/dao/ActivityInfoDao.java
index 66df872..4d5e0d7 100644
--- a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/dao/ActivityInfoDao.java
+++ b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/dao/ActivityInfoDao.java
@@ -23,6 +23,7 @@ import com.elink.esua.epdc.dto.activity.form.ActivityInfoFormDTO;
 import com.elink.esua.epdc.dto.activity.result.ActivityInfoResultDTO;
 import com.elink.esua.epdc.modules.activity.entity.ActivityInfoEntity;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
 import java.util.Map;
@@ -36,7 +37,6 @@ import java.util.Map;
 @Mapper
 public interface ActivityInfoDao extends BaseDao<ActivityInfoEntity> {
     /**
-     *
      * 功能描述: 活动查询
      *
      * @param: Map<String, Object>
@@ -47,7 +47,6 @@ public interface ActivityInfoDao extends BaseDao<ActivityInfoEntity> {
     List<ActivityInfoEntity> selectListOfActivityInfo(Map<String, Object> params);
 
     /**
-     *
      * 功能描述: 活动查询
      *
      * @param: formDto
@@ -57,9 +56,7 @@ public interface ActivityInfoDao extends BaseDao<ActivityInfoEntity> {
      */
     List<ActivityInfoResultDTO> listActivity(ActivityInfoFormDTO formDto);
 
-
     /**
-     *
      * 功能描述: 活动查询
      *
      * @param: formDto
@@ -68,4 +65,14 @@ public interface ActivityInfoDao extends BaseDao<ActivityInfoEntity> {
      * @date: 2020/6/22 10:01
      */
     ActivityInfoEntity activityDetail(ActivityDetailFormDTO formDto);
+
+    /**
+     * 功能描述: 活动人数更新
+     *
+     * @param: entity
+     * @return: int
+     * @author: zhy
+     * @date: 2020/6/22 10:01
+     */
+    int signUp(@Param("id") String id);
 }
\ No newline at end of file
diff --git a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityInfoServiceImpl.java b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityInfoServiceImpl.java
index 1c4cd1d..8f732ec 100644
--- a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityInfoServiceImpl.java
+++ b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityInfoServiceImpl.java
@@ -44,7 +44,6 @@ import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
 import java.util.Arrays;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -93,9 +92,6 @@ public class ActivityInfoServiceImpl extends BaseServiceImpl<ActivityInfoDao, Ac
     @Override
     public ActivityInfoDTO get(String id) {
         ActivityInfoEntity entity = baseDao.selectById(id);
-        // 查询活动参与人数
-        Integer signUpNum = getSignUpNumber(id);
-        entity.setSignUpNum(signUpNum);
         return ConvertUtils.sourceToTarget(entity, ActivityInfoDTO.class);
     }
 
@@ -135,9 +131,6 @@ public class ActivityInfoServiceImpl extends BaseServiceImpl<ActivityInfoDao, Ac
     public ActivityDetailResultDTO activityDetail(ActivityDetailFormDTO formDto) {
         ActivityInfoEntity entity = baseDao.activityDetail(formDto);
         ActivityDetailResultDTO dto = ConvertUtils.sourceToTarget(entity, ActivityDetailResultDTO.class);
-        // 查询活动参与人数
-        Integer signUpNum = getSignUpNumber(dto.getId());
-        dto.setSignUpNum(signUpNum);
         // 查询当前用户是否参与活动
         String signUpFlag = isParticipate(formDto.getActivityId(), formDto.getUserId());
         dto.setSignUpFlag(signUpFlag);
@@ -150,11 +143,4 @@ public class ActivityInfoServiceImpl extends BaseServiceImpl<ActivityInfoDao, Ac
         return entity != null ? NumConstant.ZERO_STR : NumConstant.ONE_STR;
     }
 
-    private Integer getSignUpNumber(String activityId) {
-        // 查询活动参与人数
-        Map<String, Object> params = new HashMap<>(1);
-        params.put("id", activityId);
-        List<ActivityParticipantEntity> activityParticipantNum = activityParticipantDao.selectListOfActivityParticipant(params);
-        return activityParticipantNum.size();
-    }
 }
\ No newline at end of file
diff --git a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityParticipantServiceImpl.java b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityParticipantServiceImpl.java
index 222d535..ce6e145 100644
--- a/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityParticipantServiceImpl.java
+++ b/epdc-cloud-property/src/main/java/com/elink/esua/epdc/modules/activity/service/impl/ActivityParticipantServiceImpl.java
@@ -21,12 +21,14 @@ import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.elink.esua.epdc.commons.mybatis.service.impl.BaseServiceImpl;
 import com.elink.esua.epdc.commons.tools.constant.FieldConstant;
+import com.elink.esua.epdc.commons.tools.exception.RenException;
 import com.elink.esua.epdc.commons.tools.page.PageData;
 import com.elink.esua.epdc.commons.tools.utils.ConvertUtils;
 import com.elink.esua.epdc.commons.tools.utils.IdentityNoUtils;
 import com.elink.esua.epdc.dto.UserDTO;
 import com.elink.esua.epdc.dto.activity.ActivityParticipantDTO;
 import com.elink.esua.epdc.dto.activity.form.ActivityParticipantFormDTO;
+import com.elink.esua.epdc.modules.activity.dao.ActivityInfoDao;
 import com.elink.esua.epdc.modules.activity.dao.ActivityParticipantDao;
 import com.elink.esua.epdc.modules.activity.entity.ActivityParticipantEntity;
 import com.elink.esua.epdc.modules.activity.redis.ActivityParticipantRedis;
@@ -56,6 +58,9 @@ public class ActivityParticipantServiceImpl extends BaseServiceImpl<ActivityPart
     @Autowired
     private UserFeignClient userFeignClient;
 
+    @Autowired
+    ActivityInfoDao activityInfoDao;
+
     @Override
     public PageData<ActivityParticipantDTO> page(Map<String, Object> params) {
         IPage<ActivityParticipantEntity> page = getPage(params);
@@ -96,12 +101,23 @@ public class ActivityParticipantServiceImpl extends BaseServiceImpl<ActivityPart
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void signUp(ActivityParticipantFormDTO dto) {
+        ActivityParticipantEntity user = baseDao.selectParticipant(dto.getActId(), dto.getUserId());
+        // 先判断用户是否已报名，已报名则直接正常返回。
+        if (user != null) {
+            return;
+        }
         ActivityParticipantEntity entity = ConvertUtils.sourceToTarget(dto, ActivityParticipantEntity.class);
         UserDTO userDto = userFeignClient.getUserInfoById(dto.getUserId()).getData();
+        if (userDto == null) {
+            throw new RenException("无法获取用户信息");
+        }
         entity.setPartyFlag(userDto.getPartyFlag());
         entity.setIdentityNo(userDto.getIdentityNo());
         entity.setAge(getAge(userDto.getIdentityNo()));
+        // 写入报名表
         insert(entity);
+        // 活动表已报名人数字段 同步修改
+        activityInfoDao.signUp(dto.getActId());
     }
 
     @Override
diff --git a/epdc-cloud-property/src/main/resources/mapper/activity/ActivityInfoDao.xml b/epdc-cloud-property/src/main/resources/mapper/activity/ActivityInfoDao.xml
index 96d3ae6..5adbe5e 100644
--- a/epdc-cloud-property/src/main/resources/mapper/activity/ActivityInfoDao.xml
+++ b/epdc-cloud-property/src/main/resources/mapper/activity/ActivityInfoDao.xml
@@ -71,37 +71,32 @@
         a.TITLE,
         a.HEAD_PIC,
         s.FRONT_STYLE,
-        s. NAME AS CATEGORY_NAME,
+        s.NAME AS CATEGORY_NAME,
         a.ACT_START_TIME,
         a.ACT_END_TIME,
         a.ACT_QUOTA_FLAG,
         a.ACT_QUOTA,
-        SUM(
+        a.SIGN_UP_NUM,
+        (
         CASE
-        WHEN P.ID != NULL THEN
-        1
+        WHEN p.id IS NULL THEN
+        '1'
         ELSE
-        0
+        '0'
         END
-        ) AS SIGN_UP_NUM,
-        SUM(
-        CASE
-        WHEN P.USER_ID = '1' THEN
-        1
-        ELSE
-        0
-        END
-        ) AS SING_UP_FLAG
+        ) AS SIGN_UP_FLAG
         FROM
         epdc_activity_info a
         LEFT JOIN epdc_section_category s ON a.CATEGORY_CODE = s. CODE
         LEFT JOIN epdc_activity_participant p ON a.ID = p.ACT_ID
+        AND p.USER_ID = #{userId}
         WHERE
         a.DEL_FLAG = '0'
         AND a.ACT_STATUS = '1'
         <if test="activityState == '0' or activityState == 0">
             AND a.SIGN_UP_START_TIME &lt;= NOW()
             AND a.ACT_END_TIME &gt;= NOW()
+            AND a.PUBLISH_TIME &lt;= NOW()
         </if>
         <if test="activityState == '1' or activityState == 1">
             AND a.ACT_END_TIME &lt;= NOW()
@@ -120,4 +115,11 @@
         DEL_FLAG = '0'
         AND ID = #{activityId}
     </select>
+    <update id="signUp">
+        UPDATE epdc_activity_info
+        SET SIGN_UP_NUM = SIGN_UP_NUM + 1
+        WHERE
+        DEL_FLAG = '0'
+        AND ID = #{id}
+    </update>
 </mapper>
\ No newline at end of file